http://search.ebay.com/boss-PW-2_W0QQfkrZ1QQfromZR8QQsatitleZbossQ20PW-2

buy one... seriously, you'll only find them on e-bay, as they have stopped making them... I just got one yesterday... and found a metal sound very quickly. pretty much just turn the distorion up fairly high (8/10 or 9/10), the bass (fat) up just past 3/4. and the mids (muscle) to somwhere between 1/4 and 1/2 and you get an amazing metal sound...